What does it mean to get a 150% salaries raise explain in words and then give an example showing a calculation

It means your salary would double plus half again.

Step-by-step explanation:

For example, if you were making $100 a month, you would get a raise to $250/month.

100 X 1.5=$150

$150+$100=$250

In addition to your regular salary you will get added to that 100% of your pay then 50% more.

If salary is $300/week and you get 150% raise you would multiply 300 * 1.50 then add that to $300

300 * 1.5 = 450 + 300 = $750

So your pay would now by $750/week